start and stop dicom receiver using DcmRcv class

[Thanasis Iliopoulos]

Hello guys,

i am really new to DICOM and dcm4che so i am a bit struggling on how to get things work together.

Here is the full scenario i would like to implement:

I would like to implement a DICOM listener (server) which will accept DICOM sent requests by a DICOM client (e.g. an MRI) ... 

From the moment that i will have dicom series/images saved locally, i should anonymize them, compress them to zip format and send them via https (secured soap) over the network.

So the fist part is implementing a DICOM listener. 

I have built a simple gui with two buttons (start/stop listener) and a log file (showing the listener status). 

I want to implement three java methods for starting dicom listener, stopping dicom listener and checking its status.

I have also noticed that DcmRcv is actually an already implemented DICOM listener so i am trying to use its interface for starting/stopping the listener as follows:

//my GUI controller class

public class FXMLDocumentController implements Initializable {

...

private DcmRcv dcmRcv;

private Boolean dcmRcvStatus;

...

 public void initialize() {

... 

dcmRcv = new DcmRcv();

dcmRcvStatus = null;

... 

//call method to check status "checkDcmrcvService"

// if listener dcmRcv is down, start it!

 

}

public void startDcmrcvService (ActionEvent event) {

        System.out.println("Going to start DICOM receiver service");

        try {            

            dcmRcv.setAEtitle("DCM4CHE1");

            dcmRcv.setHostname("127.0.0.1");

            dcmRcv.setPort(435);

            dcmRcv.setDestination("C:\\yyy\\xxx\\Development\\DevDir");

            dcmRcv.start();

        } catch (IOException ex) {

            Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.ALL, null, ex);

        }

    }

    

    public void stopDcmrcvService (ActionEvent event) {

       System.out.println("Going to stop DICOM receiver service");        

       this.dcmRcv.stop();   

        

    }

    

    public boolean checkDcmrcvService () {

        System.out.println("Going to check DICOM receiver service");

        // ...

        // IMPLEMENT LOGIC ON HOW TO CHECK listener status

        // ...

        return dcmRcvStatus;

    } 

...

} 

I can start/stop DcmRcv from the command line and verify its status successfully by using Mayam client. I am starting listener as: dcmrcv DCM4...@127.0.0.1:435

I am trying to achieve the same with the code listed in method "startDcmrcvService" but i think something is going wrong! I can not verify the connection via Mayam (using the exact AETitle@hostname:port) ...

Any ideas on what i have been missing?

And a last question! Does DcmRcv provides any methods on checking listener status? How am i going to check its status?

Any help would be really useful since i would like to move on fast with this project and DICOM/dcm4che seems to require a lot of digging ...

Thanks!

[Thanasis Iliopoulos]

After some trials i have successfully started the dicom listener from within my GUI controller class:

...

setDcmRcv(new DcmRcv("device"));

        setDcmRcvStatus(null);

        checkDcmrcvService();

        if(dcmRcvStatus.equals(false)) {

            System.out.println("Receiver is down. Going to start it!");

            startDcmrcvService();

        }

public void startDcmrcvService (ActionEvent event) {

        System.out.println("Going to start DICOM receiver service");

        try {            

            getDcmRcv().setAEtitle("DCM4CHE1");

            getDcmRcv().setHostname("127.0.0.1");

            getDcmRcv().setPort(435);

            getDcmRcv().setDestination("C:\\forth\\npap\\Development\\DevDir");

            getDcmRcv().initTransferCapability();

            getDcmRcv().start();          

        } catch (IOException ex) {

            Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.ALL, null, ex);

        }

    }

public void stopDcmrcvService (ActionEvent event) {

       System.out.println("Going to stop DICOM receiver service");

       this.dcmRcv.stop();

       //getDcmRcv().stop();   

        

    }

    

    public boolean checkDcmrcvService () {

        System.out.println("Going to check DICOM receiver service");

        setDcmRcvStatus(false);        

        DcmEcho dcmEcho = new DcmEcho("device");

        dcmEcho.setRemoteHost("127.0.0.1");

        dcmEcho.setRemotePort(435);

        dcmEcho.setCalledAET("DCM4CHE1", true);

        

        try {

            dcmEcho.open();

            setDcmRcvStatus(true);

            System.out.println("Listener is up and running");

            dcmEcho.close();

        } catch (IOException ex) {

            Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.ALL, null, ex);

        } catch (ConfigurationException ex) {

            Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.ALL, null, ex);

        } catch (InterruptedException ex) {

            Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.ALL, null, ex);

        }

        

        return dcmRcvStatus;

    }

....